This combo set is especially designed for testing drinking water. Also for freshwater and marine aquarium and aquaculture, pond water, ground water, swimming pool.
pH 4.5-9.5 test kit have a measurable range from pH 4.5 to pH 9.5 with the pH interval at 0.5. (400 tests)
Chlorine test kit can be detectable at 0.1 part per million (ppm) for very chlorine-sensitive applications, for example in shrimp and fish hatchery. It is specially designed for low chlorine concentration between 0.0 – 2.0 ppm for general purpose and also detectable at high concentration up to 8.0 ppm for disinfection and water treatment application. (250 tests)
Total hardness test kit have a measurable range from 0 – 510 part per million (ppm) as CaCO3 with the resolution of 17 ppm per drop. (120 tests)